“A study recently released by 48 leading scientists has placed two Indian cities — New Delhi and Patna — among the worst polluted in the world with high PM 2.5 levels or the fine particulate matter that affects the body the most. Published in medical journal The Lancet, the study claims that over a million Indians die every year due to air pollution. The smog over northern India is extracting a heavy toll, every minute two lives are lost in India due to ambient air pollution, the study says.”   The Indian Express

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Delhi, Patna among cities with highest air pollution: study